Void Totem (Forge)

Additions:

• new item tag (additonal_totems) to add totems from other mods or add the vanilla totem.
  Example:

{
  "replace": false,
  "values": [
    "minecraft:totem_of_undying"
  ]
}

Changes:

• removed ALLOW_TOTEM_OF_UNDYING config value, replace with additonal_totems tag

Fixes:

• big code clean up